首页> 美国卫生研究院文献>Journal of the Canadian Association of Gastroenterology >A29 HOPX LABELS A COLONIC STEM CELL THAT CONTRIBUTES TO COLONIC REGENERATION BUT NOT COLONIC TUMORS
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A29 HOPX LABELS A COLONIC STEM CELL THAT CONTRIBUTES TO COLONIC REGENERATION BUT NOT COLONIC TUMORS

机译:A29 HOPX贴有有助于结肠再生的结肠干细胞而不是结肠肿瘤

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摘要

Colorectal cancer is the 2nd leading cause of cancer death in Canada. In rapidly dividing tissues such as the intestine or colon, only long-lived, multipotent, self-renewing tissue stem cells have longevity to accumulate mutations and serve as the cellular origin of cancer. In the small intestine, genetic fate mapping studies have demonstrated that there are at least two principal stem cell pools: actively cycling, crypt base cells expressing , and quiescent cells situated above the crypt base. Clevers and colleagues have previously shown that Lgr5-expressing cells can give rise to cancer upon mutation. Interestingly, when + stem cells are selectively “killed”, intestinal integrity remains intact and other stem cells restore homeostasis. To determine whether another stem cell population can give rise to cancer in the colon, we examined whether the atypical homeobox protein marks stem cells in the colon and whether these cells can give rise to colon cancer.
机译:大肠癌是加拿大癌症死亡的第二大主要原因。在迅速分裂的组织(如肠或结肠)中,只有长寿的,能干的,自我更新的组织干细胞才能长久积累突变,并成为癌症的细胞起源。在小肠中,遗传命运图谱研究表明,至少有两个主要的干细胞库:主动循环,表达隐窝基底细胞和位于隐窝基底上方的静态细胞。 Clevers和同事以前已经表明,表达Lgr5的细胞可在突变后引发癌症。有趣的是,当+干细胞被选择性地“杀死”时,肠的完整性保持不变,其他干细胞恢复体内平衡。为了确定另一种干细胞群体是否会在结肠中引起癌症,我们检查了非典型的同源盒蛋白是否标记了结肠中的干细胞,以及这些细胞是否会引起结肠癌。

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